WCT 16A 4P 4NO Contactor

WCT 16A  4P 4NO Contactor

WCT 16A 4P 4NO Contactor

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Working principle                         

The working principle of the contactor: Upon energization, the circuit with current will create a magnetic field and generate sufficient magnetic adhesion to overcome counterforce, close armature and connect the contacts.

When the coil voltage dies out or reduces to a certain value(i.e. at the state of voltage release), for the flux generated at the end face of the armature decreases, the magnetic adhesion becomes weaker than the counterforce generated by the reaction spring, contact spring, etc.

Under the counterforce, the armature will be released and free from the field yoke, and then the contacts will be disconnected.

Technical parameter                         

Rating (In) AC7A Control voltage (VAC)(50Hz) Contact Width in 9 mm modules
16A 4P 24 4NO 4
220...240 4NO 4
220...240 2NO+2NC 4



 Power circuit
Voltage rating (Ue)   1P, 2P 250VAC
                                     3P, 4P 400VAC
Frequency 50Hz or 60Hz
Electrical 100000 cycles
Maximum number of switching operation a day 100
 Additional characteristics
Insulation voltage (Ui) 500VAC
Pollution degree 2
Rated impulse withstand voltage(Uimp) 2.5KV(4KV for 12/24/48VAC)
Degree of protection Device only IP20
Device in modular enclosure IP40
Operating temperature -5°C~+60°C
Storage temperature -40°C~+70°C
Tropicalization (IEC 60068-1) Treatment 2(relative humidity 95% at 55°C)
ELSV compliance(Extra Low Safety Voltage) for 12/24/48vac versions
The product control conforms to the SELV(safety extra low voltage) requirements



  Raring(In) Control voltage (VAC)(50Hz) Consumption Max.power
AC7a Holding Inrush
4P 16A 24 4.6VA 34VA 1.6w
220...240 4.6VA 34VA 1.6w
220...240 4.6VA 34VA 1.6w






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